When using elasticsearch 6.7,
GET /indexName/_search
returns the exact total of the index:
"hits" : {
"total" : 1527325,
"max_score" : 1.0,
...}
But in elasticsearch 7.0
GET /indexName/_search
gets:
"hits" : {
"total" : {
"value" : 10000,
"relation" : "gte"
},
which means total is greater than 10000, so how can I get the exact total count of an index in 7.0?
As of ES 7.0.0, you need to use the track_total_hits parameter:
GET /indexName/_search?track_total_hits=true
You can also add the rest_total_hits_as_int parameter if you want to get back the same format as in pre-7 versions (temporary parameter that will be removed in ES 8):
GET /indexName/_search?track_total_hits=true&rest_total_hits_as_int=true
For ES 7.5.0 using Java rest api client, you can use
sourceBuilder.trackTotalHits(true);
Preparing search request using the source builder
SearchRequest searchRequest = new SearchRequest(index);
SearchSourceBuilder sourceBuilder = new SearchSourceBuilder();
sourceBuilder.query(queryBuilder);
sourceBuilder.sort(sortBuilder);
sourceBuilder.from(from);
sourceBuilder.size(size);
sourceBuilder.trackTotalHits(true);
searchRequest.source(sourceBuilder);
client.search(searchRequest,RequestOptions.DEFAULT);
